View source for 2r0g


==Chromopyrrolic acid-soaked RebC with bound 7-carboxy-K252c==
<StructureSection load='2r0g' size='340' side='right'caption='[[2r0g]], [[Resolution|resolution]] 2.37&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2r0g]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Lentzea_aerocolonigenes Lentzea aerocolonigenes]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2R0G OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2R0G FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.37&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=7CK:7-CARBOXY-5-HYDROXY-12,13-DIHYDRO-6H-INDOLO[2,3-A]PYRROLO[3,4-C]CARBAZOLE'>7CK</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2r0g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2r0g OCA], [https://pdbe.org/2r0g PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2r0g RCSB], [https://www.ebi.ac.uk/pdbsum/2r0g PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2r0g ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q8KI25_LENAE Q8KI25_LENAE] 
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/r0/2r0g_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2r0g ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The biosynthesis of rebeccamycin, an antitumor compound, involves the remarkable eight-electron oxidation of chlorinated chromopyrrolic acid. Although one rebeccamycin biosynthetic enzyme is capable of generating low levels of the eight-electron oxidation product on its own, a second protein, RebC, is required to accelerate product formation and eliminate side reactions. However, the mode of action of RebC was largely unknown. Using crystallography, we have determined a likely function for RebC as a flavin hydroxylase, captured two snapshots of its dynamic catalytic cycle, and trapped a reactive molecule, a putative substrate, in its binding pocket. These studies strongly suggest that the role of RebC is to sequester a reactive intermediate produced by its partner protein and to react with it enzymatically, preventing its conversion to a suite of degradation products that includes, at low levels, the desired product.

Crystallographic trapping in the rebeccamycin biosynthetic enzyme RebC.,Ryan KS, Howard-Jones AR, Hamill MJ, Elliott SJ, Walsh CT, Drennan CL Proc Natl Acad Sci U S A. 2007 Sep 25;104(39):15311-6. Epub 2007 Sep 14. PMID:17873060<ref>PMID:17873060</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2r0g" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Lentzea aerocolonigenes]]
[[Category: Drennan CL]]
[[Category: Ryan KS]]